Curious to know of the folks using the Cobra/Mach intakes, are you using a spacer on the upper hat? If so, do you have any before and after results with the spacer?
I run one but don't have before and after because I was told from day one to get one since it helps correct the unequal are distribution to the cylinders. Don't get me wrong it's not a miracle worker by any means but it helps. I also have a port and polished lower that I run with it.